Which of the following statement is true with respect to H ₂ O , NH ₃ and CH ₄ ? A. The central atoms of all the molecules are sp ^3 hybridized. B. The H - O - H , H - N - H and H - C - H angles in the above molecules are 104.5^ , 107.5^ and 109.5^ , respectively. C. The increasing order of dipole moment is CH ₄ NH ₃ H ₂ O . D. Both H ₂ O and NH ₃ are Lewis acids and CH ₄ is a Lewis base. E. A solution of NH ₃ in H ₂